Device for threading needles.



H. BERTI-IL.

DEVVIGE FOB. THREADING NEEDLES. APPLIOATION FILED Amm, 1912.

1 ,090,9 1 6 Patented Mar. 24, 1914 HERMANN HERTEL, OF GERA R. J'. L.-DEBSCII`WITZ, GERMANY.

DEVICE FOR THREADING NEEDLES.

To aZZ whom it may concern Be it known that I, HERMANN IIERTEL, a subject of the German Emperor, and resident of lViesenst-rasse 57, Gera R. j. L.- Debschwitz, Germany, have invented a Device for rIhreading Needles, of which the following is a specification.

This invention relates to a device for threading sewing needles.

In the accompanying drawings the invention is shown by way of example.

Figure l is a perspective view of the needle threader. Fig. 2 is a longitudinal section on a larger scale.

The needle-threader consists of a rectangular block of convenient material. rlhis block ,7c has a longitudinal channel Z which terminates in the side wall z' of the block. The channel Z is enlarged at the end opposite the end wall e'. of the block and this enlarged part m is connected with the opposite end of the channel Z by a small curved passage g. In the upper surface of the block a vertical slot c and a vertical hole ZJ are arranged which both reach do-wn to the longitudinal channel Z In the enlarged part m of the longitudinal channel Z, pincers f are located which are connected with a push rod Z inserted in the open end of the longitudinal channel Z by means of a push wire 0. The push rod Z is maintained in the normal position by means of a spiral spring Zi located in the longitudinal channel Z and fixed with its inner end in the block la, its outer end bearing against the inner end of the push rod cZ. A straight wire 0 is fixed in the inner end of the push rod cl. rIhe free end of the straight wire 0 has an indiarubber cap c which corresponds in dimension with the eye of a sewing needle. The enlarged part m of the channel is slightly larger than the pincers f so that the pincers can move to andfro.

The needle threader operates as follows: The needle a is inserted in the hole Z) so that its eye is situated in the longitudinal channel, and the thread n is placed in the slot 0 so that its free end hangs down at the front side of the block 7c (Fig. 2). rIo force the thread n through the eye of the needle a the push rod Z is pushed into the block so that the india-rubber cap e of the straight Specification of Letters Patent.

Application filed April 11, 1912.

Patented Mar. 2d, 1914.

serial no. 690,127.

wire 0 forces the thread into the eye of the needle. Owing to the inward movement of the push-rod Z the pincers f are pushed away from the needle by means of the push wire g so that their front ends open. If now the push rod CZ is released it returns to the normal position through the action of the spiral spring ZL and pulls along the pincers f, the front ends are pushed in again, and the pincers pull the thread 'n slightly before their front ends open again to release the thread so that the needle a with the thread n can be withdrawn from the hole Z9.

Having now fully described my said invention what I claim and desire to secure by Letters Patent is An improved needle threader comprising in combination a rectangular block of convenicnt material having a longitudinal channel with an enlarged inner end, said en larged end of the channel being connected with the opposite end of the channel by means of a curved passage, said block having in its upper surface a vertical hole for the reception of the sewing needle and a transverse vertical slot for the reception of the thread, this` hole and this slot reaching down to said longitudinal channel, pincers located in the enlarged part of the longitudinal channel and having their free ends turned toward the needle hole, a push rod located in the open end of said channel so that it projects from the end wall of the block, a push wire connecting said push rod with said pincel-s and located in said curved passage, a spiral spring inrsaid longitudinal channel with one-end lined in the block and bearing with the other end against said push rod, a straight wire fixed in the inner end of the push rod and an india-rubber cap upon the free end of said straight wire designed to force the thread into the eye of the needle, substantially as described and shown and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HERMANN IIER'IEL. lVitnesses C. SCHNABEL, CHARLES NEUER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patentsy Washington, D. C. 

